Electronic Spreadsheet and Computer Graphing lab. Using the data below to write

Question

Electronic Spreadsheet and Computer Graphing lab. Using the data below to write the report to include the following items: (explain your answer and show all your works)

A) The purpose of this lab
B) Order of reaction section- analyzing the data concerning the order of the decomposition data given. And what type of reaction order this data represents and why.
C) Using an appropriate equation to identify the rate constant fro this decomposition. Explain and demonstrate how you have done the determination of k including approriate units for this constant if any.
D) Write about this experiment. Discuss deficincies in excel, suggestions, issues, etc.

Explanation / Answer

A) Purpose-   To determine the order of the reaction and the value of rate constant 'k'

B) For a first order reaction : ln(Conc) Vs time is always a linear graph ( Other two graphs also follow 1st order)

C) i.e. ln(Conc) = -k(t) + ln (Conc)o    Where (Conc)o = Concentration at time = 0

y = -0.071x + 3.243    (From the graph)

So y= ln(Conc)    rate constant k = 0.071 and   ln (Conc)o = 3.243

from the graph and the comparision the reaction is of 'First Order'

For a first order reaction the rate constant has (sec-1) unit, hence k = 0.071sec-1

D) In this reaction the rate depends only on one reactant

The data, graphs are ok. No suggestion

Related Questions

Navigate

• Browse (All)
• Browse E
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.